stardis-solver

Solve coupled heat transfers
git clone git://git.meso-star.fr/stardis-solver.git
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commit 2dc811c57eff8d33196ac908a718af758ef95da7
parent f0ebdb175ec76f51d8abce83165d48d9009f7c60
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Fri,  6 Apr 2018 16:21:31 +0200

Add the sdis_solve_probe_boundary test

Diffstat:
Mcmake/CMakeLists.txt | 1+
Asrc/test_sdis_solve_probe_boundary.c | 329+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 330 insertions(+), 0 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt @@ -134,6 +134,7 @@ if(NOT NO_TEST) new_test(test_sdis_solve_probe_2d) new_test(test_sdis_solve_probe2_2d) new_test(test_sdis_solve_probe3_2d) + new_test(test_sdis_solve_probe_boundary) target_link_libraries(test_sdis_solve_probe3 Star3DUT) target_link_libraries(test_sdis_solve_camera Star3DUT) diff --git a/src/test_sdis_solve_probe_boundary.c b/src/test_sdis_solve_probe_boundary.c @@ -0,0 +1,329 @@ +/* Copyright (C) 2016-2018 |Meso|Star> (contact@meso-star.com) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include "sdis.h" +#include "test_sdis_utils.h" + +#include <rsys/math.h> + +/* + * The scene is composed of a solid cube whose temperature is unknown. The + * convection coefficient with the surrounding fluid is null exepted for the +X + * face whose value is 'H'. The Temperature of the -X face is fixed to Tb. This + * test computes the temperature on the +X face and check that it is equal to + * + * T = (H*Tf + LAMBDA/A * Tb) / (H+LAMBDA/A) + * + * with Tf the temperature of the surrounding fluid, lambda the conductivity of + * the cube and A the size of the cube, i.e. 1. + * + * (1,1,1) + * +-------+ + * /' /| _\ + * +-------+ | / / Tf + * Tb +.....|.+ \__/ + * |, |/ + * +-------+ + * (0,0,0) + */ + +#define UNKNOWN_TEMPERATURE -1 +#define N 10000 /* #realisations */ + +#define Tf 310 +#define Tb 300 +#define H 0.5 +#define LAMBDA 0.1 + +/******************************************************************************* + * Geometry + ******************************************************************************/ +static void +get_indices(const size_t itri, size_t ids[3], void* context) +{ + (void)context; + CHK(ids); + ids[0] = box_indices[itri*3+0]; + ids[1] = box_indices[itri*3+1]; + ids[2] = box_indices[itri*3+2]; +} + +static void +get_position(const size_t ivert, double pos[3], void* context) +{ + (void)context; + CHK(pos); + pos[0] = box_vertices[ivert*3+0]; + pos[1] = box_vertices[ivert*3+1]; + pos[2] = box_vertices[ivert*3+2]; +} + +static void +get_interface(const size_t itri, struct sdis_interface** bound, void* context) +{ + struct sdis_interface** interfaces = context; + CHK(context && bound); + *bound = interfaces[itri]; +} + +/******************************************************************************* + * Media + ******************************************************************************/ +static double +fluid_get_temperature + (const struct sdis_rwalk_vertex* vtx, struct sdis_data* data) +{ + (void)data; + CHK(vtx != NULL); + return Tf; +} + +static double +solid_get_calorific_capacity + (const struct sdis_rwalk_vertex* vtx, struct sdis_data* data) +{ + (void)data; + CHK(vtx != NULL); + return 2.0; +} + +static double +solid_get_thermal_conductivity + (const struct sdis_rwalk_vertex* vtx, struct sdis_data* data) +{ + (void)data; + CHK(vtx != NULL); + return LAMBDA; +} + +static double +solid_get_volumic_mass + (const struct sdis_rwalk_vertex* vtx, struct sdis_data* data) +{ + (void)data; + CHK(vtx != NULL); + return 25.0; +} + +static double +solid_get_delta + (const struct sdis_rwalk_vertex* vtx, struct sdis_data* data) +{ + (void)data; + CHK(vtx != NULL); + return 1.0/20.0; +} + +static double +solid_get_delta_boundary + (const struct sdis_rwalk_vertex* vtx, struct sdis_data* data) +{ + (void)data; + CHK(vtx != NULL); + return 2.1/20.0; +} + +static double +solid_get_temperature + (const struct sdis_rwalk_vertex* vtx, struct sdis_data* data) +{ + (void)data; + CHK(vtx != NULL); + return UNKNOWN_TEMPERATURE; +} + +/******************************************************************************* + * Interfaces + ******************************************************************************/ +struct interf { + double temperature; + double hc; +}; + +static double +interface_get_temperature + (const struct sdis_interface_fragment* frag, struct sdis_data* data) +{ + const struct interf* interf = sdis_data_cget(data); + CHK(frag && data); + return interf->temperature; +} + +static double +interface_get_convection_coef + (const struct sdis_interface_fragment* frag, struct sdis_data* data) +{ + const struct interf* interf = sdis_data_cget(data); + CHK(frag && data); + return interf->hc; +} + +static double +interface_get_emissivity + (const struct sdis_interface_fragment* frag, struct sdis_data* data) +{ + CHK(frag && data); + return 0; +} + +static double +interface_get_specular_fraction + (const struct sdis_interface_fragment* frag, struct sdis_data* data) +{ + CHK(frag && data); + return 0; +} + +/******************************************************************************* + * Test + ******************************************************************************/ +int +main(int argc, char** argv) +{ + struct mem_allocator allocator; + struct sdis_mc T = SDIS_MC_NULL; + struct sdis_data* data = NULL; + struct sdis_device* dev = NULL; + struct sdis_medium* fluid = NULL; + struct sdis_medium* solid = NULL; + struct sdis_interface* interf_adiabatic = NULL; + struct sdis_interface* interf_Tb = NULL; + struct sdis_interface* interf_H = NULL; + struct sdis_scene* scn = NULL; + struct sdis_estimator* estimator = NULL; + struct sdis_fluid_shader fluid_shader = DUMMY_FLUID_SHADER; + struct sdis_solid_shader solid_shader = DUMMY_SOLID_SHADER; + struct sdis_interface_shader interf_shader = DUMMY_INTERFACE_SHADER; + struct sdis_interface* interfaces[12 /*#triangles*/]; + struct interf* interf_props = NULL; + double uv[2]; + double pos[3]; + double ref; + size_t iprim; + size_t nreals; + size_t nfails; + (void)argc, (void)argv; + + CHK(mem_init_proxy_allocator(&allocator, &mem_default_allocator) == RES_OK); + CHK(sdis_device_create + (NULL, &allocator, SDIS_NTHREADS_DEFAULT, 0, &dev) == RES_OK); + + /* Create the fluid medium */ + fluid_shader.temperature = fluid_get_temperature; + CHK(sdis_fluid_create(dev, &fluid_shader, NULL, &fluid) == RES_OK); + + /* Create the solid_medium */ + solid_shader.calorific_capacity = solid_get_calorific_capacity; + solid_shader.thermal_conductivity = solid_get_thermal_conductivity; + solid_shader.volumic_mass = solid_get_volumic_mass; + solid_shader.delta_solid = solid_get_delta; + solid_shader.delta_boundary = solid_get_delta_boundary; + solid_shader.temperature = solid_get_temperature; + CHK(sdis_solid_create(dev, &solid_shader, NULL, &solid) == RES_OK); + + /* Setup the interface shader */ + interf_shader.temperature = interface_get_temperature; + interf_shader.convection_coef = interface_get_convection_coef; + interf_shader.emissivity = interface_get_emissivity; + interf_shader.specular_fraction = interface_get_specular_fraction; + + /* Create the adiabatic interface */ + CHK(sdis_data_create(dev, sizeof(struct interf), 16, NULL, &data) == RES_OK); + interf_props = sdis_data_get(data); + interf_props->hc = 0; + interf_props->temperature = UNKNOWN_TEMPERATURE; + CHK(sdis_interface_create + (dev, solid, fluid, &interf_shader, data, &interf_adiabatic) == RES_OK); + CHK(sdis_data_ref_put(data) == RES_OK); + + /* Create the Tb interface */ + CHK(sdis_data_create(dev, sizeof(struct interf), 16, NULL, &data) == RES_OK); + interf_props = sdis_data_get(data); + interf_props->hc = 0; + interf_props->temperature = Tb; + CHK(sdis_interface_create + (dev, solid, fluid, &interf_shader, data, &interf_Tb) == RES_OK); + CHK(sdis_data_ref_put(data) == RES_OK); + + /* Create the H interface */ + CHK(sdis_data_create(dev, sizeof(struct interf), 16, NULL, &data) == RES_OK); + interf_props = sdis_data_get(data); + interf_props->hc = H; + interf_props->temperature = UNKNOWN_TEMPERATURE; + CHK(sdis_interface_create + (dev, solid, fluid, &interf_shader, data, &interf_H) == RES_OK); + CHK(sdis_data_ref_put(data) == RES_OK); + + /* Release the media */ + CHK(sdis_medium_ref_put(solid) == RES_OK); + CHK(sdis_medium_ref_put(fluid) == RES_OK); + + /* Map the interfaces to their geometric primitive */ + interfaces[0] = interfaces[1] = interf_adiabatic; /* Front */ + interfaces[2] = interfaces[3] = interf_Tb; /* Left */ + interfaces[4] = interfaces[5] = interf_adiabatic; /* Back */ + interfaces[6] = interfaces[7] = interf_H; /* Right */ + interfaces[8] = interfaces[9] = interf_adiabatic; /* Top */ + interfaces[10]= interfaces[11]= interf_adiabatic; /* Bottom */ + + CHK(sdis_scene_create(dev, box_ntriangles, get_indices, get_interface, + box_nvertices, get_position, interfaces, &scn) == RES_OK); + + /* Release the interfaces */ + CHK(sdis_interface_ref_put(interf_adiabatic) == RES_OK); + CHK(sdis_interface_ref_put(interf_Tb) == RES_OK); + CHK(sdis_interface_ref_put(interf_H) == RES_OK); + + uv[0] = 0.3; + uv[1] = 0.3; + iprim = 6; + + #define SOLVE sdis_solve_probe_boundary + CHK(SOLVE(NULL, N, iprim, uv, INF, 1.0, 0, 0, &estimator) == RES_BAD_ARG); + CHK(SOLVE(scn, 0, iprim, uv, INF, 1.0, 0, 0, &estimator) == RES_BAD_ARG); + CHK(SOLVE(scn, N, 12, uv, INF, 1.0, 0, 0, &estimator) == RES_BAD_ARG); + CHK(SOLVE(scn, N, iprim, NULL, INF, 1.0, 0, 0, &estimator) == RES_BAD_ARG); + CHK(SOLVE(scn, N, iprim, uv, -1, 1.0, 0, 0, &estimator) == RES_BAD_ARG); + CHK(SOLVE(scn, N, iprim, uv, INF, 1.0, 0, 0, NULL) == RES_BAD_ARG); + CHK(SOLVE(scn, N, iprim, uv, INF, 1.0, 0, 0, &estimator) == RES_OK); + #undef SOLVE + + CHK(sdis_estimator_get_realisation_count(estimator, &nreals) == RES_OK); + CHK(sdis_estimator_get_failure_count(estimator, &nfails) == RES_OK); + CHK(nfails + nreals == N); + + CHK(sdis_estimator_get_temperature(estimator, &T) == RES_OK); + + CHK(sdis_scene_get_boundary_position(NULL, iprim, uv, pos) == RES_BAD_ARG); + CHK(sdis_scene_get_boundary_position(scn, 12, uv, pos) == RES_BAD_ARG); + CHK(sdis_scene_get_boundary_position(scn, iprim, NULL, pos) == RES_BAD_ARG); + CHK(sdis_scene_get_boundary_position(scn, iprim, uv, NULL) == RES_BAD_ARG); + CHK(sdis_scene_get_boundary_position(scn, iprim, uv, pos) == RES_OK); + + ref = (H*Tf + LAMBDA * Tb) / (H + LAMBDA); + printf("Boundary temperature at (%g %g %g) = %g ~ %g +/- %g\n", + SPLIT3(pos), ref, T.E, T.SE); + CHK(eq_eps(T.E, ref, T.SE)); + + CHK(sdis_estimator_ref_put(estimator) == RES_OK); + CHK(sdis_scene_ref_put(scn) == RES_OK); + CHK(sdis_device_ref_put(dev) == RES_OK); + + check_memory_allocator(&allocator); + mem_shutdown_proxy_allocator(&allocator); + CHK(mem_allocated_size() == 0); + return 0; +} +